Locomotor recognition Flashcards
Which protozoa does this LC belong to
Sarcocysts spp (protozoal coccidia)
in intermediate: compartmentalised muscle sarcocysts with bradyzoites - infectious
obligate heteroxenous
sporogony in final host
sporulated oocysts in faeces
thin walled oocysts with free sporozoites
different species have one final hosts (e.g. cat, dog, human) but many intermmediates
mainly asymptomatic in final host
may get sarcocystiosis in intermmediate - fever, anaemia, CNS disorders, death, abortion - meat condemnation
Which protozoa forms this tissue cyst?
Sarcocysts (locomotor coccidia)
compartmentalise cyst
thick, radial striated wall
seen in muscles
What family are these from and what is the problem?
Taenia - cestodes
problem as get meat condemnation
can be zoonotic
What nematode is this?
Trichinella spiralis (non bursate trichinelloidea)
What nematode does this egg belong to?
Capillaria sp (non busate trichinelloidea)
What nematode is this?
Trichinella Spiralis (non bursate trichinelloidea)
has a muscular oesophagus
oesophagus with stichocytes
gonads in anterior part
male’s tail has two little extenstions (not spicules)
especially free range pigs (and horses)
zoonotic (myositis, myocarditis, oedema)
What nematod LC is this?
Trichinella Spiralis
intracellular nematode
no exogenous phase
viviparous
l1 invades ep cells - ep cells form syncytium - four moults and devlop into adult - newborn larvae
What is this? what nematode forms it?
Nurse cell from Trichinella Spiralis in a muscle cell
encapsulated larvae
reprogramming of host genome to increase collagen, angiogenesis (so larvae can get nutrients) and anaerobic respiration
can persist for years
